電(diàn)抗器(qì)

■産品概述product overview

現(xiàn)代電(diàn)力電(diàn)子(zǐ)設備的(de)大(dà)量使用(yòng)産生(shēng)的(de)非線性電(diàn)流正以諧波方↔式影(yǐng)響電(diàn)網并加重電(diàn)網污染，并導緻電(diàn)容器(qì)，變壓器(qì)及傳輸設備過載并故障，對(duì)測量，傳動，計(jì)算Ω(suàn)等設備産生(shēng)的(de)嚴重幹擾，諧振及電(diàn)壓畸變還(hái)造成供電(diàn)事(shì)故。串聯電(diàn)抗器(qì)可(kě)得('de)以改善與避免。電(diàn)容器(qì)串聯電(diàn)抗器(qì)後諧振頻(pín)率低(dī)于系統最低(dī)(一(yī)般為(wèi)5次及7次),使其在‌工(gōng)頻(pín)下(xià)呈容性，以改善功率因數(shù)，而在諧振并無放(fàng)大(dà)諧波之濾，良好(hǎo)的(de)阻 抗匹配後，電(diàn)容器(qì)組可(kě)吸收諧波電(diàn)流(如(rú)5次)30%-60%。

The extenslve use of modern power electronic devices generates nonlinear curre‌ntsthat affect thepower grid in a harmonic manner,exacerbating grid ‍pollutionand causing overload and fallure ofcapacltors,transformers,and transmlssion equipment. This causes serious interference,resonance,and voltage distortlon to measurement,transmisslonδ,calculation,and otherequlpment,leading to power supply accidents.Serles reactors can be Impro"ved and avolded.After connectlng capacltors in serles with react↓ors,the resonant frequency ls lower than thelowestin the system (usually 5th​ and 7th),making It capacltlve at power frequency to lmprove powerfactor.In resonance,there ls₹ no fitering of amplfied harmonics,and after good impedancematching,thecapaclto'r bank can absorb 30%-60%ofharmonlccurrent(such as 5th).

■産品應用(yòng)product Applicatior

·改善電(diàn)容濾波造成的(de)輸入電(diàn)流波形畸變；
·減少(shǎo)和(hé)防止因沖擊電(diàn)流造成整流橋損壞和(hé)電(diàn)容過熱(rè)；↑
·提高(gāo)功率因素，降低(dī)直流母線交流脈沖；
·改善電(diàn)網電(diàn)壓的(de)瞞變；
·與并聯連接的(de)電(diàn)容一(yī)起共同抑制(zhì)或濾掉直流中紋波，以排除對(duì)負載的(de)不(bù)利影(yǐng)響。

·Improvethe distortion of input current waveform caused ∏by capacitor filtering;
·Reduce and prevent damage to rectifier bridges and overheating of capacitorsc≥aused bysurge currents;
·Improve power factor and reduce DC bus ACpulses;
·Improve the transient voltage of the power grid;Together with capacitors connected inparallel,suppεressor filter out DC rippleto eliminate adverseeffects on th↔e load.